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Wyszukujesz frazę "Nandi, P." wg kryterium: Autor


Tytuł:
Cadmium acts as a silent killer of liver by inducing oxidative stress and hepatocellular injury and a possible amelioration by vitamin B12 and folic acid in rat model
Autorzy:
Banerjee, A.
Nandi, P.
Bhattacharya, C.
Kabir, Z.
Mukherjee, S.
Maji, B.K.
Tematy:
Cadmium
liver
hepatocellular injury
oxidative stress
Pokaż więcej
Wydawca:
Uniwersytet Medyczny w Białymstoku
Powiązania:
https://bibliotekanauki.pl/articles/1918855.pdf  Link otwiera się w nowym oknie
Opis:
Purpose: To investigate the involvement of oxidative stress in Cadmium (Cd) induced alteration in the functional status of the liver. And to assess the efficacy of folic acid and vitamin B12 in preventing Cd-induced damage in the same. Materials and methods: The experiment was carried out for four weeks. For the experiment, 25 healthy male adult Wistar albino rats were randomly selected and were divided into five equal groups and treated as control, treated with Cd, supplemented with vitamin B12 and folic acid and in the combination of these two. After 28 days the liver function enzymes and oxidative stress parameters were measured. Results: Cd is the silent killer of the hepatic system through the induction of oxidative stress in male rats. From this investigation, it is evident that the folic acid+vitamin B12 possess significant hepatoprotective and antioxidant activity against Cd-induced hepatotoxicity in the rat model. In addition, results revealed that the folic acid alone and or in combination with vitamin B12 blunted the hepatotoxic effect significantly. Conclusions: Based on results obtained, it can be concluded that folic acid and vitamin B12 offer a protective effect in Cd-induced oxidative stress associated with hepatocellular injury. Folic acid and vitamin B12 can be considered as a potent natural antioxidant which has the capacity to provide protection against Cd-induced oxidative stress in the liver in rats. However, to elucidate the exact mechanism of this modulatory effect and to examine its potential therapeutic effects further studies are essential.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shaking during ion-atom collisions
Autorzy:
Sharma, P.
Nandi, T.
Tematy:
31.15.xp
34.50.Fa
25.70.Bc
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:
https://bibliotekanauki.pl/articles/1158707.pdf  Link otwiera się w nowym oknie
Opis:
The shaking (shakeup and shakeoff) processes accompanying ion-atom collisions are studied using non-relativistic hydrogenic wave functions for the K-, L- and M-shell electrons in the sudden approximation limit. The role of recoil amplitude in the shaking processes is discussed. It is found that the suddenness of collision between projectile and target nuclei plays a more definitive factor in the shaking of the respective atomic system than the recoil of nuclei.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematical modeling to optimize the product in enzyme kinetics
Autorzy:
Nandi, S.
Ghosh, M. K.
Bhattacharya, R.
Roy, P. K.
Tematy:
enzyme kinetics
optimization
optimal control approach
reversible reaction
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Powiązania:
https://bibliotekanauki.pl/articles/206501.pdf  Link otwiera się w nowym oknie
Opis:
Optimization of product in enzyme kinetics is successful by the showers of mathematical analysis with control measures. Enzymes are an important functional aspects of all biochemical processes, as they catalyze numerous reaction taking place within living organisms. With this view, optimization and quantification of product is stressed upon and in such a context, optimal control approaches have been applied in our study. In this article, we have formulated a mathematical model of enzymatic system Dynamics with control measures with a view to optimize the product as well as process conditions. Here, Pontryagin Minimum Principle is used for determination of optimal control with the help of Hamiltonian. We discuss the relevant numerical solutions for the concentration of substrate, enzyme, complex and product with respect to a specified time interval by varying control factors.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assay of the thermally stable, insensitive, high explosive 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)
Autorzy:
Nandi, A. K.
Thirupathi, N.
Mandal, A. K.
Pandey, P. K.
Tematy:
assay TATB
acid-base titration
base hydrolysis
trinitrophloroglucinol
ammonium chloride
Pokaż więcej
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Powiązania:
https://bibliotekanauki.pl/articles/358608.pdf  Link otwiera się w nowym oknie
Opis:
An aqueous titration method is described to assay the insensitive, high explosive 1,3,5-triamino-2,4,6-trinitrobenzene (TATB). TATB is initially quantitatively converted to the weak acid 1,3,5-trihydroxy-2,4,6-trinitrobenzene (THTNB) by base catalysed hydrolysis. Subsequently THTNB is assayed by acidbase titration. TATB samples obtained from regular batch operations are assayed by this method, and the results are compared with those obtained by the total amino functional group estimation method using a modified Kjeldhal apparatus. The method is simple and has good accuracy and precision.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparation and characterization of ultrafine RDX
Autorzy:
Pant, A.
Nandi, A. K.
Newale, S. P.
Gajbhiye, V. P.
Prasanth, H.
Pandey, R. K.
Tematy:
ultrafine RDX
drowning-out crystallization
BET surface area
SEM
mechanical and electrostatic spark sensitivity
Pokaż więcej
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Powiązania:
https://bibliotekanauki.pl/articles/358126.pdf  Link otwiera się w nowym oknie
Opis:
This paper describes the synthesis of ultrafine Hexogen (UF-RDX) of size <5μm by drowning-out crystallization. RDX was precipitated from acetone or dimethylformamide (DMF) solution by reducing the solvent power using either a miscible, non-aqueous antisolvent, n-hexane, or an aqueous antisolvent, water containing polyethylene glycol (PEG). Process parameters such as solvent/ antisolvent ratio, agitation, ultrasonication etc. were studied. UF-RDX was characterized for Brunauer-Emmett-Teller (BET) surface area, X-ray diffraction (XRD), Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectroscopy (FT-IR), Differential Scanning Calorimetry (DSC) and sensitivity tests. In the case of the non-aqueous antisolvent, the precipitated RDX crystals were rod shaped of diameter <1 μm. For the aqueous antisolvent, oval shaped crystals (<5 μm) were precipitated. UF-RDX was found to be more sensitive to impact and less friction sensitive compared to production grade RDX (60-80 μm).
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assay of the Insensitive High Explosive FOX-7 by Non-Aqueous Titration
Autorzy:
Nandi, A. K.
Paramasivan, P.
Singh, S. K.
Mandal, A. K.
Pandey, R. K.
Tematy:
1,1-diamino-2,2-dinitroethene
FOX-7
non-aqueous titration
N,N-dimethylformamide
Pokaż więcej
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Powiązania:
https://bibliotekanauki.pl/articles/358156.pdf  Link otwiera się w nowym oknie
Opis:
A non-aqueous titration method was developed to assay the insensitive high explosive 1,1-diamino-2, 2-dinitroethene (FOX-7). The weak acidic nature of FOX-7 (pKa 10.6) was exploited in the assay method. The sample was dissolved in the protophilic solvent N, N-dimethylformamide and titrated against sodium methoxide solution in benzene/methanol using azo violet as indicator. FOX-7 samples obtained from regular batch operations were assayed by this method and the results were compared with that of a recrystallized sample. The method is simple, rapid and has good accuracy and precision.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formation of Boric Acid by Surface Oxidation of Amorphous Boron Powder: Characterization and Quantitative Estimation
Autorzy:
Nandi, A. K.
Ghosh, M.
Newale, S. P.
Jadhav, A. J.
Prasanth, H.
Pandey, R. K.
Tematy:
amorphous boron powder
B2O3
boric acid
FTIR
SEM
EDX
Pokaż więcej
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Powiązania:
https://bibliotekanauki.pl/articles/358160.pdf  Link otwiera się w nowym oknie
Opis:
Amorphous Boron Powder (ABP) is used as a fuel in air breathing propulsion systems due to its high gravimetric and volumetric heat value. ABP is sensitive to air and undergoes slow oxidation during storage and handling, leading to the formation of a boric acid layer on the particle surface. This paper describes an analytical method for the estimation of boric acid in ABP. In-house samples obtained from the pilot plant of this laboratory, as well as commercial samples, were assayed for their boric acid content. The study is substantiated by characterization of the ABP samples by SEM with EDX and FTIR. The ageing characteristics of in-house boron powder was also studied.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparation of Nano Aluminium Powder (NAP) using a Thermal Plasma: Process Development and Characterization
Autorzy:
Pant, A.
Seth, T.
Raut, V. B.
Gajbhiye, V. P.
Newale, S. P.
Nandi, A. K.
Prasanth, H.
Pandey, R. K.
Tematy:
nano aluminium
thermal plasma
DC arc plasma
RF induction plasma
aluminium content
BET surface area
HR-TEM
Pokaż więcej
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Powiązania:
https://bibliotekanauki.pl/articles/358835.pdf  Link otwiera się w nowym oknie
Opis:
A bottom up approach for the preparation of Nano Aluminium Powder (NAP) using a Transferred Arc Thermal Plasma Reactor (TAPR) is described. The aluminium block is subjected to evaporation by the application of a thermal plasma. The aluminium vapour produced is rapidly quenched to room temperature resulting in crystallization of the aluminium vapour in nano-particulate form. Various process parameters, such as the plasma torch power, reactor pressure and plasma gas composition were optimized. This paper also describes the characterization of NAP by analytical methods, for the estimation of the Active Aluminium Content (AAC), Total Aluminium Content (TAC), XRD, bulk density, BET surface area, HR-TEM etc. The results are compared with those for samples prepared in other thermal plasma reactors, such as the DC Arc Plasma Reactor (DCAPR) and the RF Induction Thermal Plasma Reactor (RFITPR), and for commercially available NAP samples (ALEX, prepared by the EEW technique).
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abashian-Booth-Crowe resonance structure in the double pionic fusion to ^{4}He
Autorzy:
Kupść, A.
Yamamoto, A.
Brinkmann, K.-T.
Hodana, Małgorzata
Hauenstein, F.
Pluciński, P.
Wolke, M.
Kamys, Bogusław
Klaja, Joanna
Hejny, V.
Khoukaz, A.
Fedorets, P.
Varma, R.
Gullström, C.-O.
Li, L.
Tolba, T.
Engels, R.
Büscher, M.
Redmer, C. F.
Krzemień, Wojciech
Morsch, H.-P.
Wrońska, Aleksandra
Pyszniak, Andrzej
Skorodko, T.
Czerwiński, Eryk
Skurzok, Magdalena
Erven, W.
Szczurek, A.
Yuan, X.
Pricking, A.
Magiera, Andrzej
Wüstner, P.
Calén, H.
Serdyuk, V.
Siudak, R.
Bardan, Wiktor
Bergmann, F. S.
Coderre, D.
Stockhorst, H.
Zipper, W.
Doroshkevich, E.
Goldenbaum, F.
Schadmand, S.
Złomańczuk, J.
Schmidt, A.
Khan, F. A.
Mikirtychiants, M.
Sawant, S.
Mariański, B.
Ohm, H.
Trzciński, A.
Bhatt, H.
Perez del Rio, Elena
Wagner, G. J.
Żuprański, P.
Shah, N.
Höistad, B.
Ritman, J.
Zheng, C.
Roy, A.
Bednarski, Tomasz
Demmich, K.
Pauly, C.
Adlarson, P.
Lorentz, B.
Yurev, L.
Podkopał, Paweł
Jarczyk, Lucjan
Grigoryev, K.
Pysz, K.
Smyrski, Jerzy
Stepaniak, J.
Zabierowski, J.
Węglorz, W.
Petukhov, Y.
Goslawski, P.
Maier, R.
Pszczel, D.
Heijkenskjöld, L.
Wurm, P.
Kleines, H.
Stassen, R.
Berłowski, M.
Johansson, T.
Niedźwiecki, Szymon
Jany, Anna
Kistryn, Stanisław
Rudy, Zbigniew
Kemmerling, G.
Husmann, C.
Fransson, K.
Jany, Benedykt
Zieliński, Marcin
Sopov, V.
Schätti - Ozerianska, Iryna
Ströher, H.
Kłos, B.
Sterzenbach, G.
Clement, H.
Bashkanov, M.
Nandi, B. K.
Prasuhn, D.
Eyrich, W.
Hinterberger, F.
Kulessa, P.
Marciniewski, P.
Lalwani, K.
Augustyniak, W.
Lersch, D.
Föhl, K.
Moskal, Paweł
Vlasov, P.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł

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